3-2-2-0
6-4-4-0
12-8-8-0
18-12-12-0
25-17-16-2
33-23-22-4
38-28-27-7
44-34-32-12
49-38-36-18
52-42-40-24
56-46-44-30
59-49-47-36
63-53-51-42
65-55-53-49
68-58-56-55
70-60-58-61
73-63-61-67
76-66-61-67
78-68-66-80
80-70-68-86
83-73-71-93

 

 
C
M
Y
Paper White
0%
0%
0%
Highlight
5%
3%
3%
1/4 tone
29%
19%
20%
Midtone
49%
36%
36%
3/4 tone
62%
49%
47%
Shadow
65%
53%
51%
Extreme
Black point
65%
53%
51%

 

Sky
Always C > M > Y
cyan is double magenta, almosnt no yellow
eg: 60C 28M 1Y 0K

 

Skin
Always Y>M>C
Y is 1-15 > M
C is 1/2 to 1/6 of Y
eg: 5C 20M 24Y 0K

 

  • Create a new layer on top of your test image.
  • Go to Edit >> Fill and use 50% gray.
  • Change the Blend mode of this layer to Difference
  • Now, create a New Adjustment Layer with Threshold, and drag the slider all the way to the left (everything will go white now!), and then gradually move it to the right. The first areas that appear in black will be the neutrals. Nudge it more to the right to see a greater range of neutrals.
  • Mark those spots or areas with your Color Sampler tool if you wish, or just note where they appear, and there you have it.
  • Delete the two layers you created and you can now recognise the neutral areas in your target image.